Description
  
   bool com_load_typelib
    ( string $typelib_name
   [, bool $case_insensitive
  ] )
  
  
   Note that it is much more efficient to use the Runtime Configuration configuration setting to pre-load and
   register the constants, although not so flexible.
  
  
   If you have turned on Runtime Configuration, then
   PHP will attempt to automatically register the constants associated with a
   COM object when you instantiate it.  This depends on the interfaces
   provided by the COM object itself, and may not always be possible.